# How NVIDIA GPUs Help Accelerate OpenAI’s GPT-6 Astra Ultrafast

The new mode delivers up to 8x faster token generation than Astra Standard mode for API, ChatGPT Work, and Codex users.

- OpenAI used internal models to generate optimized inference kernels directly for Blackwell and Rubin GPU architectures.
- The acceleration targets low-latency multi-step loops, including tool calls and coding agent edit-test-debug cycles.
- Access is available immediately through the OpenAI API, ChatGPT Work, and Codex.

## Why it matters

Developers building agentic workflows and interactive coding assistants get significantly reduced latency between iterative tool calls.

## Sources

- [NVIDIA AI: How NVIDIA GPUs Help Accelerate OpenAI’s GPT-6 Astra Ultrafast](https://blogs.nvidia.com/blog/gpus-openai-gpt-6-astra-ultrafast)

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Summarized by dstilled on 2026-10-01. https://dstilled.ai/story/30503e9d-59e3-4756-8a49-a9f6a69eace3